Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (6 online) Mindat Auctions

Coquandite

Big Photo

Lucky Knock Mine (Lawrence Mine), Whitestone Coulee, Tonasket, Okanogan Co., Washington, USA
© Saul Krotki 2007

Show Coquandite Photos (10)
Formula:
Sb
 
6
[O
 
8
|SO
 
4
] · H
 
2
O
System:TriclinicHardness:3 - 4
This page provides mineralogical data about Coquandite.

Classification of Coquandite

IMA status:Approved 1991
Strunz 8th edition ID:6/B.02-20
Nickel-Strunz 10th (pending) edition ID:7.DE.35

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
E : With only medium-sized cations; unclassified
Dana 8th edition ID:30.1.18.1

30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO4)pZq, where m:p>2:1
Hey's CIM Ref.:25.8.2

25 : Sulphates
8 : Sulphates of Sb, V, Cr and U
mindat.org URL:http://www.mindat.org/min-1125.html
Please feel free to link to this page.

Type Occurrence of Coquandite

Co-type Localities:Pereta Mine, Pereta, Scansano, Grosseto Province, Tuscany, Italy
Lucky Knock Mine (Lawrence Mine), Whitestone Coulee, Tonasket, Okanogan Co., Washington, USA
Year of Discovery:1992

Physical Properties of Coquandite

Hardness (Mohs):3 - 4

Crystallography of Coquandite

Crystal System:Triclinic
Cell Parameters:a = 11.43Å, b = 29.77Å, c = 11.31Å
α = 91.07°, β = 119.24°, γ = 92.82°
Ratio:a:b:c = 0.384 : 1 : 0.38
Unit Cell Volume:V 3,350.00 ų (Calculated from Unit Cell)

Optical Data of Coquandite

Type:Biaxial (+)
Dispersion:r < v strong

Chemical Properties of Coquandite

Formula:
Sb
 
6
[O
 
8
|SO
 
4
] · H
 
2
O
Essential elements:H, O, S, Sb
All elements listed in formula:H, O, S, Sb

Relationship of Coquandite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DE.05Mangazeite
Al
 
2
[(OH)
 
4
|SO
 
4
] · 3H
 
2
O
7.DE.10Carbonatecyanotrichite
Cu
 
4
Al
 
2
[(OH)
 
12
|(CO
 
3
,SO
 
4
)] · 2H
 
2
O
7.DE.10Cyanotrichite
Cu
 
4
Al
 
2
[(OH)
 
12
|SO
 
4
] · 2H
 
2
O
7.DE.10UKI-1975-(SO:AlCu)
Cu, Al, SO4, H2O
7.DE.15Schwertmannite
Fe
3+
16
O
 
16
(OH,SO
 
4
)
 
12-13
 · 10-12H
 
2
O
7.DE.20Tlalocite
Cu
 
10
Zn
 
6
(TeO
 
3
)(TeO
 
4
)
 
2
Cl(OH)
 
25
·27H
 
2
O
7.DE.25Utahite
Cu
 
5
Zn
 
3
[(OH)
 
2
|TeO
 
4
]
 
4
 · 7H
 
2
O
7.DE.40Osakaite
Zn
 
4
(SO
 
4
)(OH)
 
6
 ·5H
 
2
O
7.DE.45Wilcoxite
MgAl[F|(SO
 
4
)
 
2
] · 18H
 
2
O
7.DE.50Stanleyite
(V
4+
 
O)[SO
 
4
] · 6H
 
2
O
7.DE.55Mcalpineite
Cu
 
3
[TeO
 
6
] · H
 
2
O
7.DE.60Hydrobasaluminite
Al
 
4
[(OH)
 
10
|SO
 
4
] · 12-36H
 
2
O
7.DE.65Zaherite
Al
 
12
[(OH)
 
26
|(SO
 
4
)
 
5
] · 20H
 
2
O
7.DE.70Lautenthalite
PbCu
 
4
(SO
 
4
)
 
2
(OH)
 
6
·3H
 
2
O
7.DE.75Camerolaite
Cu
 
4
Al
 
2
[(OH)
 
10
|CO
 
3
|(HSbO
 
4
,SO
 
4
)] · 2H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
25.8.1Klebelsbergite
Sb
 
4
[O
 
4
|(OH)
 
2
|SO
 
4
]
25.8.3Peretaite
Ca(SbO)
 
4
[(OH)|SO
 
4
]
 
2
 · 2H
 
2
O
25.8.4Cannonite
Bi
 
2
[O|(OH)
 
2
|SO
 
4
]
25.8.5Minasragrite
(V
4+
 
O)[SO
 
4
] · 5H
 
2
O
25.8.6Stanleyite
(V
4+
 
O)[SO
 
4
] · 6H
 
2
O
25.8.7Redingtonite
(Fe
2+
 
,Mg,Ni)(Cr,Al)
 
2
(SO
 
4
)
 
4
·22H
 
2
O
25.8.8Meta-uranopilite
(UO
 
2
)
 
6
[(OH)
 
10
|SO
 
4
] · 5H
 
2
O
25.8.9Uranopilite
(UO
 
2
)
 
6
[(OH)
 
10
|SO
 
4
] · 12H
 
2
O
25.8.10Natrozippeite
Na
 
4
(UO
 
2
)
 
6
[(OH)
 
10
|(SO
 
4
)
 
3
] · 4H
 
2
O
25.8.11Zippeite
K
 
4
(UO
 
2
)
 
6
[(OH)
 
10
|(SO
 
4
)
 
3
] · 4H
 
2
O
25.8.12Johannite
Cu(UO
 
2
)
 
2
[OH|SO
 
4
]
 
2
 · 8H
 
2
O
25.8.13Magnesiozippeite
Mg(UO
 
2
)
 
2
(SO
 
4
)(OH)
 
4
·1.5H
 
2
O
25.8.14Zinczippeite
Zn
 
2
(UO
 
2
)
 
6
(SO
 
4
)
 
3
(OH)
 
10
·16H
 
2
O

Other Names for Coquandite

Synonyms:
IMA1991-024
Other Languages:
German:Coquandit
Spanish:Coquandita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Coquandite

Reference List:New Minerals (1997), New Minerals 1990-1994.

Mineralogical Magazine: 56: 599-603.

Internet Links for Coquandite

Search Engines:
  • Look for Coquandite on Google
  • Look for Coquandite images on Google
    • External Links:
  • Look for Coquandite on Webmineral
  • Look for Coquandite on Athena Mineralogy
  • Look for Coquandite on Wikipedia
  • Look for Coquandite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Coquandite in the Natural History Museum (London) online catalogue
  • Coquandite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Buy minerals from Mineralium.com
  • rare and unusual minerals mainly crystallized
  • Buy Fine Minerals from mineralsweb.com
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Wendel Minerals - Auktion & Shop
  • Search for - Coquandite - on e-Rocks Mineral Sales & Auctions
  • Buy Minerals and Crystals from Crystalarium.com
  • Top quality minerals from Kristalle of California
  • Buy from David K Joyce minerals
  • Rare and Unusual minerals at Mineralogical Research Company
  • Fine Minerals from Dan Weinrich Minerals
  • Fabre Minerals - search for Coquandite specimens
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Coquandite

    Hide Locality List
    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Italy
     
    • Tuscany
      • Grosseto Province
        • Scansano
          • Pereta
    		Min.Mag.:56:599-603.
      • Pisa Province
        • Pomarance
    		Orlandi, P. (1997): Zibaldone di mineralogia italiana. Rivista Mineralogica Italiana, 21, 179-185. ; Bardi, T., Biagioni, C., & Orlandi, P. (2009). Aggiornamento sui minerali della Sorgente Solfurea di Micciano (Pomarance, Pisa, Toscana). MICRO (località), 1/2009, 261-276.
      • Siena Province
        • Chiusdino
    		Lapis Magazine Vol 6.1993 Page 22
    Luxembourg
     
    • Goesdorf commune
      • Goesdorf
    		Simon Philippo analysis (to be published); [Filella M., Philippo S., Belzile N., Chen Y. and Quentel F. (2009) Natural attenuation processes applying to antimony: A study in the abandoned antimony mine in Goesdorf, Luxembourg - Science of the total environment (in press)]
    Portugal
     
    • Porto District
      • Gondomar
    USA
     
    • Washington
      • Okanogan Co.
        • Tonasket
          • Whitestone Coulee
    		Min.Mag.: 56:599-603.
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 6th Nov 2009 12:37:22